Monterey Time Machine not working

Immediately after upgrading from Big Sur to Monterey on my M1 MacBook Air, most of my Time Machine backups stopped working. I have one backup going to a network drive, the other four go to locally connected USB drives that are rotated between locations. Only a single one of the USB connected drives continued to work all the others show the same symptoms:


The backup starts and then appears to work fine (giving me number of bytes backed up and a time estimate of what's left), and it gets almost done, according to the progress bar, and then it just stops. No errors are displayed, it just stops. When I open the time machine control panel it just shows the last backup as the one immediately before the Monterey upgrade.


I took one of the offending drives and erased it using the disk utility, then removed and re-added it as a Time Machine volume. Time machine picked up the drive and began backing up to it and appeared to back up nearly the entire machine (~600GB worth). When it was almost done (just a few minutes left, according to the progress bar), it just stopped. Relaunching the backup on that drive will cause it to back up a gigabyte or so and then it just stops when almost done.


Any assistance would be appreciated as only one backup is happening. Thanks

MacBook Air (2020 or later)

Posted on Oct 28, 2021 12:52 PM

Reply
Question marked as Top-ranking reply

Posted on Oct 29, 2021 8:41 AM

I'm having the same issue and would like to add my anecdote.


I'm on a fresh install of Monterey and I attempted to use a newly formatted external drive for Time Machine. When the backup begins, there will be a progress bar and it will appear to be working normally. Even after it reaches 100% and appears to have completed, the Time Machine menu will still imply that there has been no completed backup as evidenced by two things:


The menu will still say "Latest Backup: None" and also when directly opening the Time Machine drive in Finder, there are no files at all. Odd too is that the actual space for the backup is being taken up on the drive, but as stated there are no files actually copied or accessible on the Time Machine drive after it appears to have completed.

Similar questions

131 replies

Nov 7, 2021 10:09 AM in response to imediayala

I have a brand new M1 (24-inch, 2021) and safe mode did not work for 2 SSDs and an AirPort Extreme. However, I reformatted all of my backup drives and was starting brand new backups; might have to do with that. Time Machine goes through the process, reaches around 85-90%, and then "Cleans Up,", but there are no accessible files on the SSD. It's backing something up since available memory shows being much less than the full capacity, but Finder reports "0" items.


I did a session with Apple this morning and reported everything after following all of their standard checklist suggestions. I wish there was an easier way to report software issues without them assuming it is somehow something you are doing wrong.

Nov 9, 2021 6:36 AM in response to high_voltage

Same Problem.

Working fine until upgraded to Monterey.TM then after 3 days it decided the disk was full. Despite reformatting etc still never completed.

However, reformatting the drive then starting in Safe Mode and doing a backup appears to have kicked it into life and so far it is still working, though early days.

(External SSD drive via USB and encrypted backup)

Nov 9, 2021 8:09 AM in response to high_voltage

Same Problem for me, Since upgrading to Monterey I cant access my older backups, as it keeps asking for the encryption password, which I know 100% is correct and it rejects. So I deleted my old backup and decided to make a fresh backup, but it wont work, and if I tried without encryption. It starts and wont complete, also it doesn't run when the computer is in sleep mode with the lid closed, (plugged in).. It all worked flawlessly before upgrading, come on Apple sort this out asap......

Nov 12, 2021 10:44 AM in response to high_voltage

I also have this issue,

I was running macOS Big Sur when the 19 October 2021 backup was made.

The disk to which I am backing up is a Seagate Backup Plus Drive with 1 TB of Storage, my Mac with 512 GB of storage, but now, only 128 GB out of 1 TB storage is remaining.

Yesterday, a successful backup occurred, but the latest backup is still on '19 October 2021'. The disk, in Finder, appeared to have the latest snapshot on 19 October 2021. Today, the date was updated, but today, after several backup attempts, the date of the latest backup is still yesterday. But I noticed that those attempts were successful, from the 'Enter Time Machine' option.

I am using:

  • MacBook Pro (13-inch, M1, 2020)
  • macOS Monterey 12.0.1

I faced the same issue today. I made multiple attempts to back up, facing the same issue.

Here are screenshots:

Note: It is currently the 13th of November here.





So, the backups are indeed successful for me, if I enter Time Machine.

Nov 14, 2021 11:32 AM in response to Harry2047

Seems to work for some, not for others (not for me).


I have Monterey running TM flawlessly on an Intel iMac and it is failing every time on an M1Pro MBP14. Have erased the external drive repeatedly and tried different formats.


My machine as FileVault on; I want to use Encrypted and Case Sensitive APFS on the backup drive (5TB HDD). TM shouldn't be sensitive to any kind of formatting, correct? Is there a reason NOT to encrypt or use case-sensitive for the backup drive? (That would defeat the purpose of those settings.) (Failing = not showing backups; the disk storage indicates that they are there, just not displaying; the app TM either shows no change or is permanently trying to complete a backup.)


I did have success with a limited backup (exclusion of just a few files). It subsequently failed to repeat backup too.


I have spent hours with an Apple tech and we got nowhere so far.


I will eagerly wait a solution from this list if not from Apple in an upgrade that stabilizes their software.

Nov 14, 2021 12:06 PM in response to jinet

I too spend countless hours trying to solve the problem.  Finally, here’s what works for me:


Firstly, I haven’t got FileVault on.


Secondly, I named my time machine disk “T5 TM” - you can name it anything you like.


In Disk Utilities, formatted by entire external drive to USB External Physical Disk GUID Partition Map. (My entire external drive is called “Samsung Portable SSD”


When complete, you should then see a container containing your actual drive.  Mine looks like:


Samsung Portable SSD


       Container disk6


                 T5 TM


Formatter the T5 TM drive to APFS - nothing else NOT ENCRYPTED.


In Time Machine Preferences, if you have used a disk with the same name before i.e. “T5 TM” and it is still showing in the list of time machine disks, remove it first.


Now add the APFS disk (T5 TM), tick the Encrypted box and fill in your password and reminder.


PLEASE NOTE:  I found that the first backup NEVER completed!  The solution was to boot up in Safe Mode, do the backup and then restart as normal.  In fact, I always backup in safe mode.  I hope Apple solves this in their next Monterey update.


Good luck!

Nov 19, 2021 7:29 PM in response to high_voltage

I have the same issue, both with 11.6.1 and then after updating to 12.0.1. However, I also could not get TM backup to USB SSD to finish in safe mode either. I get the same behavior - backup runs until the end and then faults with message that "Waiting to complete first backup". Checking in disk utility shows data on disk, but Finder does not show any filename on the disk.

Nov 22, 2021 12:49 AM in response to high_voltage

I was finally able to fix my "Waiting for First Backup" woes in Monterey by adding this path to the exclusions list. Worked for me at least after lots of digging through error logs. I also had to first boot into Safe Mode and start with a freshly formatted external backup drive (as discussed previously in this thread).


Library/Containers/com.apple.findmy.FindMyWidgetPeople


I'm running an M1 Pro machine with macOS 12.0.1


This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Monterey Time Machine not working

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.